Bumper



Vu'. E. DUNSTDN BUMPER Filati Nov. 23

Patented Aug. 26, 1924'.

'PATENTy oF FICE.

WAYNE E. DUNSTN, F KALAMAZGQ MICHIGAN, ASSIGOR T0 THE C. G. SPRING 'l BUMPER COMPANY, OF DIETROI'J?.y *MICHIGALB A CORPORATIONOF iiELAWARE BUMrER.

Application filed-November 23, 1922. Serial No. 602,688.'

To all whom 'it may colwewi-L:

- a citizen of the United States, residing at Kalamazoo, in the county of Kalai'nazoo and State of Michigan, have invented a certain new. and useful Improvement in Bumpers, oi which the following is a full, clear, and exact description, reference being had to the accompanying drawings. This invention relates to more particularly to the means for connecting together the central portions-ot bumpers comprising a. plurality of verticallyspaccdfront or impact bars or plates` and an intermediate auxiliary orfrear-b'ar or plate. The general ob]ect of the invention 1s to provide a device for'connecting' tlie said bars orV plates which is particularlyv eiicieiit in operation which will provide anonrattling con'- nection between ,the partsgand one which will perniit the use of syn'imetrical and interjl'changeable members. Iac'coinplish thetoregoing general objects, as well as others which will appear hereinafter, -in and through the construction and arrangement of parts shown in the drawings forming a part hereof, wherein Fig. .l represents a plan view ot a bumper of the type referred to herein, having myinvention applied there to; Fig. 2 a front elevation of the aforesaid bumper; Fig. 3 an enlarged central sectional detail through -the bumper -and clamping means shown in the preceding views; Fig. llA

a detail in plan View of the parts shown in Fig.- 3 and F ig. 5 a detail in elevation of the front' or outer member of the clamping device.

Describing the various parts by reference characters, 1 denotes the vertically spaced 40 kmain plates or bars of a bumper, the said bars extending the full width of the bumper andeach being .curved rearwardly at its ends, asindicated at la. 3 denotes the rear or auxiliary bar, the bar -3 being preferably 'straight throughoutits length and being shown asconnected at its ends to the ends of the front or main bars by means of caps 4, to which the ends of the bars or plates are secured in any desired manner, the details of such connection forming no part of the invention sought to be protected herein. The bumper as a whole is shown as supported from the arms or members 5 by means of clamps 6, which are a'djustablyl mounted upon the rear orauxiliary bar 3 and pivotbumpers, and

gagey the upper flange 8", while the upper ally connected to 'thefront ends of the arms Be it known that I, lVArNi-i E. DUNSTON,

5, as indicated at 7. For .the purpose of connectiilg the central portion of the rear or auxiliary bar to the central portions of the front or main bars, I provide a clamp consisting generally of a -front; or outer seating inember 8, and apair of inner or rearwardly extendingclamping members, each indicated generally at 9.

The member 8 is in the general forin'o a shallow channel havingv the web 8a thereof presented rearwardly or toward the vehicle, th'e ia'nges Sli being preferably flared outwardly and provided each' with a lateral ezt-j` tension or projection 8, the rear or inner face of each such projection being adapted to bear against the front oroutwardly-presented .-face ofamai'n -bar 1.4 When assembled, the low'e'r edge of the "upper main'A bar will enedge of the lower main bar will engage the lower flange 8", .thefront 'or outer faces of the bars engaging the adjacent surfaces of the projections 8.` 1

In 'addition to the projections 8, the meniber 8 is provided, rearwardly of such projections, with a pai.` of projections 8, each being carried by a flange 8b and having its rear or inner face 'preferably constituting an extension of the eorrespondii'ig-face of the web 8a.' The front or outer face of each projection 8d is inwardly or rearwardly beveled from the' flange 8, as indicated at 8*. The

purpose of this construction will be explained in connection with the two rear clamping members, which will now be described. 'Y l Each of the rear clamping members con-. sists generally of a. body 9 iaving depending iianges 9 at each side thereof. At their inner or rear edges, each `of thesemembers is .provided with. va notched or charuieledv 'seat 9*,v-tlie seats jointly receiving the up -per-,and the' lower edge-of the auxiliary'bar or plate V3. At its outer or front end, each 1 member 9 is provided with a. flange 9 Ywhich is adapted to beinserted between-the rear or inner face of a bar or tion 8". The portion of each flange 9 which engages the beveled'face of its pro'ection l Sd's also preferably beveled, as in icated at l Eachv ot the members 9 is provided -with an opening 9e in the central portion' thereof, with a seat 9r surrounding' such opening. 1

plate l and s. projec- *A engage the other nection between the front and the rear plates convenienty 4vI claimis:

v1. A clamping gether the vertically spaced impact bars and bolt 10 extends through'these.openings the plate l will bewedged against the {ianges or projections 8 through the actionv of the wedgedsurfaces 9d and 8. The frontV member 8 is provided with a -pair of tapped openings 8' for the appli- "cation of-a. name plate thereto .within the channeled seat provided by such member.

The construction disclosed herein is simple andeconomic'al of production, but is particularly eilicient in securing a firm conor bars of the bumper; it can be readily and applied to the said bars or pla-tes; an :it will-prevent the rattling of the various parts'when in-use.

Having thus'described my invention, what device for securing tothe intermediate and laterall spaced auxiliarybar o '-abumper, said evice comprising a member having u ing' portions, for thea jacent edges-of the main bars, a pair of members each having a 'portion adapted to engage an impact bar and forma seat therefor with the cooperatingfseating portion of the lirst member, each of the'flast two members also having a seat for' an edge of the intermediate auxiliary bar, and means intermediate of the endsot the last two members for adjusting the same toward eachother.

2. A clamping de vice for securing toetlier-the vertically spaced impact bars and t eintermediate'and laterally spaced auxiliary-bar of a bumper, said device compris- 'ing a member. 'having seating portions vadapted toengage the adjacent lower and upper edges of the said impact bars and the- .front or`outer' 'lateral surfacesof said bars,

respectively,` a pair.` of members each having a portion adapted -to engage the inner or 'rear lateral face ofan impact bar opposite the face-engaging portions of the first member, respectively, and each also having a seat Vfor an edge ofthe intermediate auxillary bar, and means .for adjusting the said pair of members-toward each other.

3. A "clamping device for securing to:-

gether the vertically spaced impact bars and the-intermediate and laterally spaced auiriliary b ar of a. bumper,said ldevice coinprising a member having seatingl portions adapted to engage the adjacent lower and upper edges of the said impact bars and the lpair of members toward eachl other, and

r and lower seat-V -engage the inner or rear face of an impact nsoagxs front or outer lateral surfaces ofsaid plates,

lespectvely,. a .pair ofV members h havi'ng a' portion adapted to engage he inner or rear lateral face of an impact b'ar op osite the facecngaging portions of the rst member, respectively. and each-also having a. seat for an edge of thewintermediate'auxiliary bar or plate, means for adjusting the means cooperating with the bar-eng ing portions of the two last-mentioned mem rs for forcing the same towardand into engagement with their respective impact b ars 'through the operation of said adjusting means.

4. A' clamping device for securing toether the vertically spaced impact bars and t e intermediate and laterall spacedauxf iliary bar of'a bumper, saiddevice comprisnga=member having a central-base anda flange projectino' outwardly. or forwardly'` from theltop and a liange projecting in :like manner from the bottom of such baseand a substantially vertical projectie ing from each such ila e'zeiacha' hojec'tioni and the outer portion t''n'go1-ac0nstiif. tuting respectively" ring Vfacegfor, the outer face of an'impact. bar anda seat-for the adjacent edge ofsuch bar, thef said/memeachhaving a veld-or tapered-Surface presented toward the bar-engagin 4surface thereof, a pair of clampingmem rs'each having .a portion adapted to engage-the inner or rear face of an impact bar and a surface ada ted to enga e the beveled ortapered su ace on one o such projections and each adapted tofenga e an edge ofthe auxiliary bar or plate, an means ordrawing the clamping members towardeach other. 5. A. clamping device -for securing toether the vertically spaced impact bars and t e intermediate and laterally spaced auxiliary bar of a bumper, 'said devicecom rising a member having a central base an anv inner and an outer projection at the top and at the bottom thereof respectively, leach outer projection being adapted to .engage the outer face of an impact bar adjacent thereto and each inner projection having :ifV beveled or tapered surface presented toward its outer projection, a pair of clamping members each having a portionadapted to bar and a surface adapted to engage theV beveled or .tapered surface of an inner projection, each clamping member also bein a seat for an edge of the auxiliary bar, an means for drawing 'the clamping members toward each other.

6. A clamping device. for securing together the vertically spaced impact bars and the intermediate yand laterally spaced auxiliary bar of a bumper, said device comprising a member provided with a surface adapted to engage the adjacent portions of the outer or front faces of the impact bars, respectively, and having tapered surfaces opposed to the first mentioned surfaces, a pair of members each having a seat for an edge of the auxiliary bar and each having portion adapted to.be interposed between the rear or inner face of an impact bar and one of such tapered surfaces, and means for drawing the last two members toward each other. l

7. A Vclamping device for securing tofgetlier the vertically spaced impact bars and the intermediate and laterally spaced auxiliary bar of a bumper, said device comprising a seating member havinga pair vof bearing surfacesl adapted respectively toengage the lower, outer face of the upper main bar and the upper outer face of the lower impact bar, respectively, a pair ofv clamping members each having aseat or'an edge pf the yauxiliary bar, means for adjusting the last two members toward each other, and means operative by such movement of the last two members toward each other for `torchio` the un er and lower im act bars s l Ll P against the cooperating bearing surfaces of the seating member. V

8. A damping device for securing together the vertically spaced impact bars and the intermediate and laterally spaced auxiliary bar of a bumper, said device comprising a seating member having Ia pair of bearing surfaces adapted respective y-to engage theA lower, outer surface of the upper impact .oar and the upper, outer face of the iower impact bar, a pair o clamping members each having a seat for an edge or the auxiiiary bar, means for adjusting the last two members toward each other, each of the last twomei'nbers having a surface opposed to a bearing surface on the rst mentioned member, and tapered surfaces carried by the first member and adapted to be enoaged by such portions of the clamping members, whereby the adjustment of the said clampingimembers toward each other will irmiy clamp the said impact bars between such opposed bearing portions on the seating member and on the clamping members.

In testimony whereof, I hereunto affix my signature.

WAYNE E. DUNSTON. 

